Space-bar for linotype-machines.



No. 796,770. PATENTBD AUG. 8, 1905. J. H. STREET & G. KARSTEN.

SPACE BAR FOR LINOTYPE MACHINES.

APPLICATION FILED DEC. 12, 1904.

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al 5286868, )5. 2141, $07M 5} ZMWWML UNTTED STATES PATENT OFFICE.

JOSHUA HENRY STREET AND CHARLES KARSTEN, OF CHATTANOOGA,

TENNESSEE.

SPACE-BAR FOR LlNOTYPE -lVlACHINES.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application filed December 12, 1904. Serial No. 236,642.

To all whmn it may concern:

Be it known that we,JosHUA HENRY STREET and CHARLES KARsTnN, citizens ofthe United States, residing at Chattanooga, in the county of Hamiltonand State of Tennessee, have invented certain new and usefulImprovements in Space-Bars for Linotype-Machines, of which the followingis a specification.

This invention relates to improvements in space-bars for justifyinglines of type-matrices of linotype or other type-casting machines. Inthe use of space-bars for these machines as heretofore constructed it isfound that there is a great deal of lost motion between the stationaryand movable members, which permits of their separation so as to allowmetal to be pressed in this space in casting, thereby making a bad lineand allowing the movable member to get out of alinement withthestationary one; and the object of this invention is to take up thislost motion, to prevent the separation of the members, and to cause theparts to move true with each other.

The objects of the invention are accomplished by the mechanismillustrated in the accompanying drawings, in which- Figure 1 illustratesa perspective front View of a space-bar with this invention appliedthereto, showing the movable member in its lowest position. Fig. 2 is aperspective front View of same, showing the movable member in apartially-raised position with relation to the stationary member. Fig. 3is a cross-section on the line 3 30f Fig. l, and Fig. 4 is across-sectionthrough the thick end of the movable member.

In the drawings the same reference characters relate to the same orcorresponding parts in all of the views.

4 is the stationary member, which is provided with the lateralsupporting ears or lugs 5 for holding the member in place between thematrices. This stationary member is made tapering from the upper broadend, having the ears 5, down to its lower end. 6 is the movable member,which is similarly tapered in the opposite direction. These two partshave their thin ends disposed in opposite directions with respect toeach other, as usual, and are slidably secured together, whereby thecombined thickness of the two may be varied by raising and lowerng themovable member, and the taper of the two parts is such as to keep theirouter faces constantly parallel with each other.

The stationary member 4 has the V-shaped recess 7 of the same characterand for the same purpose as in prior space-bars, and at the bottom ofthis recess is the longitudinal slot 8, with parallel beveled edges,which extends down to the usual plate 9, that is riveted to thestationary member and has beveled edges to engage with thecorrespondingly-beveled edges of the slot 10 in the movable member 6.The movable member 6 has the longitudinal slot 10, which is made withbeveled edges in the usual way, and at the thin end of the said memberbetween said end and the slot is the small plate 11, which may be anintegral part of said member, but will preferably be a separate plateriveted to said member. This plate 11 its in the above-described slot 8and hlas beveled edges to engage those of the said s ot. the usual thinportion 12 at its lower part, which is reduced enough to permit thesliding over it of the reinforcingplate 9 of the stationary member, andsaidmovable member has the rivet 1 3 to prevent the complete separationof the two members. This rivet can be removed when it is desired toreplace the stationary member of the space-bar.

From the foregoing description it will be seen that a space-bar isprovided in which the V-shaped groove in the end of the stationarymember will direct a dovetailed plate 11 into its slot 8, which willprevent the separation of the members and will hold them true and even.

Having thus fully described this invention, what is claimed as new is Ina space-bar for linotype or similar typecasting machines, thecombination of a sta tionary member consisting of a single piece ofmetal tapering from one end to the other, provided at its thick end witha V-shaped recess which terminates with an extension having beveledparallel sides, supporting lugs or ears for holding said member in astationary position, said plate having an extension with The movablemember is provided with parallel beveled edges, and a movable mem- 1hands and seals. at Chattanooga, Tennessee, ber tapering from one end tothe other having this 3d day of December, A. D. 1904:. beveled waysengaging the beveled extension JOSHUA HENRY STREET [In 3.] 1n thestationary member and said movable CHARLES KARSTEN. [11. s] memberhaving a beveled extension to engage the beveled edges of the recessextension in Witnesses: the stationary member. CHARLES C. MORRISON,

In Witness whereof We have hereunto set our F. O. WERT, Jr.

